dsh-a2a-notify

dsh-a2a-notify

中文说明

A DeepSeek Harness (DSH) host plugin that raises real Windows balloon notifications when a session is created, starts running, finishes, or errors — across every workspace, including sessions created by headless runs, CLI one-shots, and external dispatchers (A2A).

The problem it solves: tasks dropped into a workspace you are not looking at (an A2A dispatcher, dsh --print, another agent) run to completion silently. The sidebar only shows sessions of the workspace you have open, and nothing tells you the rest. This plugin watches the session store itself, so nothing slips through.

WorkBuddy/A2A dispatch → headless session lands on disk
                       → balloon: "DSH new session (headless) / new session in scripts"
                       → balloon: "DSH session finished"

Why it is built this way

Two hard facts about DSH internals, both verified by experiment against 0.2.0-rc.2 (details in Known limitations & design notes):

1. Headless sessions never announce themselves. Each headless run is its own short-lived process; its api-session/* events die with it. So this plugin runs a second channel — fs.watch over the session store (~/.dsh/sessions) — and deduplicates against the live event channel.
2. The DSH process tree is desktop-isolated. Balloons spawned by the Host or any child (WinForms or WinRT toast, under any AppUserModelID) never reach your desktop; they fail with 0x80073D54 or are silently dropped, and never appear in the notification center. So notifications are dispatched through a per-user scheduled task that runs on the interactive desktop: the plugin drops a request file into a mailbox directory and triggers a2a-notify-dispatch, which claims files atomically and shows the balloons.

Install

dsh plugin add github:hsiu1214/dsh-a2a-notify

or from a release archive:

dsh plugin add https://github.com/hsiu1214/dsh-a2a-notify/releases/latest/download/dsh-a2a-notify-0.1.0.tgz

Restart DSH afterwards (the restart-button plugin does this in one click) — plugin code is loaded at Host boot and ESM caches make hot reload unreliable.

Windows 10/11 only (the dispatcher needs PowerShell 5.1 + WinForms, both inbox).

Events

Event	Balloon	Notes
api-session/added	"DSH new session"	any workspace; deduplicated per session (the host re-emits added for restored sessions)
api-session/status → running	"DSH session running"
api-session/status → idle	"DSH session finished"
api-session/error	"DSH session error"
api-session/activity	—	fires on every user message; too noisy, deliberately not notified

Append-only audit log: ~/.dsh/logs/a2a-notify.log.

Configuration

Optional, in your profile's cordis.patch.yml:

- id: a2a-notify
  name: dsh-a2a-notify
  config:
    notifyOn:
      added: true
      running: false   # set false if per-turn balloons are too chatty
      finished: true
      error: true
    notifyWorkspaces:                # cwd prefix allowlist; empty = all
      - C:\Users\<you>\.workbuddy
      - C:\Users\<you>\WorkBuddy

notifyWorkspaces silences your own GUI chats (e.g. the workspace you type in) while keeping external dispatchers loud. Sessions with an unknown cwd always notify.

Known limitations & design notes

• Headless sessions do not appear in the sidebar in real time. The data layer is complete — POST /api/session/list returns them (verified; they land in the sidebar's ungrouped group) — but the GUI only re-pulls on page load. Refresh the page (the restart-button plugin refreshes it for you) and they appear. The balloon still tells you the moment a dispatch lands.
• The plugin re-emits api-session/added for store-watched sessions so the GUI can pick them up live; whether that push survives the gateway's event-scope routing depends on the DSH version.
• Balloon display requires the scheduled-task channel. If the plugin is installed under a path containing spaces, schtasks /tr quoting breaks and it falls back to a direct spawn, whose balloons may not display on sandboxed desktops — install under the default (space-free) location.
• WinRT ToastNotificationManager is deliberately not used: sandboxed child processes have no MSIX package identity and CreateToastNotifier rejects them with 0x80073D54 even after SetCurrentProcessExplicitAppUserModelID. NotifyIcon.ShowBalloonTip (WinForms, inbox) renders as a standard corner notification on Win10/11 without needing any identity.

Security

• Reads the host Cordis event bus only; registers no HTTP routes, opens no ports, no network access.
• Writes: ~/.dsh/logs/a2a-notify.log (audit), ~/.dsh/a2a-notify/pending/ (notification mailbox), and registers one per-user scheduled task pointing exclusively at this plugin's own dispatcher.ps1.
• Balloon text contains session titles / workspace paths only, never conversation content.

Uninstall

dsh plugin --profile desktop remove dsh-a2a-notify

or delete ~/.dsh/profiles/desktop/node_modules/dsh-a2a-notify/, remove the two manifest registrations and the cordis.patch.yml config block, then schtasks /delete /tn "a2a-notify-dispatch" /f.

License

MIT